firewire_bebob_protocols/maudio/

pfl.rs

// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (c) 2021 Takashi Sakamoto

//! Protocol implementation for M-Audio ProFire Lightbridge.
//!
//! The module includes structure, enumeration, and trait and its implementation for protocol
//! defined by M-Audio ProFire Lightbridge
//!
//! DM1500 is used for M-Audio ProFire Lightbridge.
//!
//! ## Diagram of internal signal flow
//!
//! ```text
//! adat-input-1/2 ----> stream-output-1/2
//! adat-input-3/4 ----> stream-output-3/4
//! adat-input-5/6 ----> stream-output-5/6
//! adat-input-7/8 ----> stream-output-7/8
//! adat-input-9/10 ---> stream-output-9/10
//! adat-input-11/12 --> stream-output-11/12
//! adat-input-13/14 --> stream-output-13/14
//! adat-input-15/16 --> stream-output-15/16
//! adat-input-17/18 --> stream-output-17/18
//! adat-input-19/20 --> stream-output-19/20
//! adat-input-21/22 --> stream-output-21/22
//! adat-input-23/24 --> stream-output-23/24
//! adat-input-25/26 --> stream-output-25/26
//! adat-input-27/28 --> stream-output-27/28
//! adat-input-29/30 --> stream-output-29/30
//! adat-input-31/32 --> stream-output-31/32
//! spdif-input-1/2 ---> stream-output-33/34
//!
//! stream-input-1/2 ----> adat-output-1/2
//! stream-input-3/4 ----> adat-output-3/4
//! stream-input-5/6 ----> adat-output-5/6
//! stream-input-7/8 ----> adat-output-7/8
//! stream-input-9/10 ---> adat-output-9/10
//! stream-input-11/12 --> adat-output-11/12
//! stream-input-13/14 --> adat-output-13/14
//! stream-input-15/16 --> adat-output-15/16
//! stream-input-17/18 --> adat-output-17/18
//! stream-input-19/20 --> adat-output-19/20
//! stream-input-21/22 --> adat-output-21/22
//! stream-input-23/24 --> adat-output-23/24
//! stream-input-25/26 --> adat-output-25/26
//! stream-input-27/28 --> adat-output-27/28
//! stream-input-29/30 --> adat-output-29/30
//! stream-input-31/32 --> adat-output-31/32
//! stream-input-33/34 --> spdif-output-1/2
//! stream-input-35/36 --> analog-output-1/2
//! ```
//!
//! The protocol implementation for M-Audio ProFire Lightbridge was written with firmware version
//! below:
//!
//! ```sh
//! $ cargo run --bin bco-bootloader-info -- /dev/fw1
//! protocol:
//!   version: 3
//! bootloader:
//!   timestamp: 2006-03-14T05:51:18+0000
//!   version: 0.0.0
//! hardware:
//!   GUID: 0x00418b63000d6c08
//!   model ID: 0x000008
//!   revision: 0.0.0
//! software:
//!   timestamp: 2006-09-14T02:54:30+0000
//!   ID: 0x000100a1
//!   revision: 0.0.5747
//! image:
//!   base address: 0x400c0080
//!   maximum size: 0x12fb24
//! ```

use super::*;

/// The protocol implementation for media and sampling clock of ProFire Lightbridge.
#[derive(Default, Debug)]
pub struct PflClkProtocol;

impl MediaClockFrequencyOperation for PflClkProtocol {
    const FREQ_LIST: &'static [u32] = &[44100, 48000, 88200, 96000];
}

impl SamplingClockSourceOperation for PflClkProtocol {
    const DST: SignalAddr = SignalAddr::Subunit(SignalSubunitAddr {
        subunit: MUSIC_SUBUNIT_0,
        plug_id: 0x07,
    });

    const SRC_LIST: &'static [SignalAddr] = &[
        // Internal
        SignalAddr::Subunit(SignalSubunitAddr {
            subunit: MUSIC_SUBUNIT_0,
            plug_id: 0x08,
        }),
        // S/PDIF
        SignalAddr::Unit(SignalUnitAddr::Ext(0x01)),
        // Optical iface 1
        SignalAddr::Unit(SignalUnitAddr::Ext(0x02)),
        // Optical iface 2
        SignalAddr::Unit(SignalUnitAddr::Ext(0x03)),
        // Optical iface 3
        SignalAddr::Unit(SignalUnitAddr::Ext(0x04)),
        // Optical iface 4
        SignalAddr::Unit(SignalUnitAddr::Ext(0x05)),
        // Word clock
        SignalAddr::Unit(SignalUnitAddr::Ext(0x06)),
    ];
}

/// The protocol implementation for meter information.
#[derive(Default, Debug)]
pub struct PflMeterProtocol;

const METER_SIZE: usize = 56;

/// The protocol implementation for input parameters.
#[derive(Default, Debug)]
pub struct PflInputParametersProtocol;

/// Nominal frequency detected for any external input.
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum PflDetectedInputFreq {
    Unavailable,
    R44100,
    R48000,
    R88200,
    R96000,
}

impl Default for PflDetectedInputFreq {
    fn default() -> Self {
        Self::Unavailable
    }
}

/// Information of hardware metering.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub struct PflMeterState {
    /// Detected input frequency.
    pub detected_input_freq: PflDetectedInputFreq,
    /// Detected signal level of outputs.
    pub phys_outputs: [i32; 2],
    /// The status of sampling clock.
    pub sync_status: bool,
    cache: [u8; METER_SIZE],
}

impl Default for PflMeterState {
    fn default() -> Self {
        Self {
            detected_input_freq: Default::default(),
            phys_outputs: Default::default(),
            sync_status: Default::default(),
            cache: [0; METER_SIZE],
        }
    }
}

impl PflMeterProtocol {
    /// The minimum value of detected signal level.
    pub const METER_MIN: i32 = 0;
    /// The maximum value of detected signal level.
    pub const METER_MAX: i32 = 0x007fffff;
    /// The step value of detected signal level.
    pub const METER_STEP: i32 = 0x100;

    /// Cache state of hardware for the parameters.
    pub fn cache(
        req: &FwReq,
        node: &FwNode,
        meter: &mut PflMeterState,
        timeout_ms: u32,
    ) -> Result<(), Error> {
        let frame = &mut meter.cache;

        req.transaction_sync(
            node,
            FwTcode::ReadBlockRequest,
            DM_APPL_METER_OFFSET,
            frame.len(),
            frame,
            timeout_ms,
        )?;

        let mut quadlet = [0; 4];

        quadlet.copy_from_slice(&frame[..4]);
        let val = u32::from_be_bytes(quadlet);
        meter.detected_input_freq = match val {
            4 => PflDetectedInputFreq::R96000,
            3 => PflDetectedInputFreq::R88200,
            2 => PflDetectedInputFreq::R48000,
            1 => PflDetectedInputFreq::R44100,
            _ => PflDetectedInputFreq::Unavailable,
        };

        meter
            .phys_outputs
            .iter_mut()
            .enumerate()
            .for_each(|(i, m)| {
                let pos = 4 + i * 4;
                quadlet.copy_from_slice(&frame[pos..(pos + 4)]);
                *m = i32::from_be_bytes(quadlet);
            });

        quadlet.copy_from_slice(&frame[20..24]);
        let val = u32::from_be_bytes(quadlet);
        meter.sync_status = val != 2;

        Ok(())
    }
}

const CACHE_SIZE: usize = 24;

/// Parameters of input configuration.
#[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
pub struct PflInputParameters {
    /// Whether to mute ADAT inputs.
    pub adat_mute: [bool; 4],
    /// Whether to mute S/PDIF inputs.
    pub spdif_mute: bool,
    /// Use ADAT S/MUX at higher sampling rate.
    pub force_smux: bool,
    cache: [u8; CACHE_SIZE],
}

impl PflInputParametersProtocol {
    pub fn update(
        req: &FwReq,
        node: &FwNode,
        params: &mut PflInputParameters,
        timeout_ms: u32,
    ) -> Result<(), Error> {
        let cache = &mut params.cache;

        params.adat_mute.iter().enumerate().for_each(|(i, m)| {
            let pos = i * 4;
            let val = *m as u32;
            cache[pos..(pos + 4)].copy_from_slice(&val.to_be_bytes());
        });

        let val = params.spdif_mute as u32;
        cache[16..20].copy_from_slice(&val.to_be_bytes());

        let val = params.force_smux as u32;
        cache[20..24].copy_from_slice(&val.to_be_bytes());

        req.transaction_sync(
            node,
            hinawa::FwTcode::WriteBlockRequest,
            DM_APPL_PARAM_OFFSET,
            cache.len(),
            cache,
            timeout_ms,
        )
    }
}